Disentangled Feature Based Adversarial Learning for Facial Expression Recognition
Mengchao Bai, Weicheng Xie, Linlin Shen · 2019
A facial expression image can be considered as an addition of expressive component to a neutral expression face. With this in mind, in this paper, we propose a novel end-to-end adversarial disentangled feature learning (ADFL) framework for facial expression recognition. The ADFL framework is mainly composed of three branches: expression disentangling branch ADFL-d, neutral expression branch ADFL-n and residual expression branch ADFL-r. The ADFL-d and ADFL-n aim to extract the expressive component and neutral component, respectively. The ADFL-r extracts the residual expression by calculating the difference between feature maps of ADFL-d and ADFL-n, and uses the residual expression feature for expression classification. Experimental results on several benchmark databases (CK+, MMI and Oulu-CASIA) show that the proposed method has remarkable performance compared to state-of-the-art methods.